1.fedora25安装ffmpeg
sudo dnf install http://download1.rpmfusion.org/free/fedora/rrpmfusion-free-release-25.noarch.rpmsudo dnfupdate
sudo dnf install ffmpeg
2.fedora25安装gstreamer-ffmpeg
sudo dnf install gstreamer-ffmpeg-0.10.13-16.fc25.x86_643.fedora25安装gstreamer
dnf install gstreamer1-devel gstreamer1-plugins-base-tools gstreamer1-devel-docs \
gstreamer1-plugins-base-devel gstreamer1-plugins-base-devel-docs \
gstreamer1-plugins-good gstreamer1-plugins-good-extras \
gstreamer1-plugins-ugly gstreamer1-plugins-ugly-devel-docs \
gstreamer1-plugins-bad-free gstreamer1-plugins-bad-free-devel \ gstreamer1-plugins-bad-free-extras